Plenty. LHW and HW, while they still have good fighters at the top are definitely thinner overall. LHW's newer stars are still relatively new to the top of the division so who's to say if they will have a lasting impact.
One of the big things is that a lot of the newer top guys can't make their names off of legends from the past as they are either gone or they are so far past their prime it means so little to beat them. Jones made his name beating the previous couple of generations of top LHW's before him, guys like Blachowicz, Reyes, and Santos (two of them being no spring chickens themselves) don't really have anyone save for Jones and Glover left (Gustafsson hasn't been seen as being in his general prime for years).
At HW, while guys like Overeem, Dos Santos, and Arlovski are still around and their power is still a danger, it doesn't mean a whole lot to beat them (though a win over Overeem means more these days than the other two). Big Nog, Fedor, Barnett, Couture, Sylvia, Hunt, Brock, Mir, Cain, Cro Cop, Carwin, Gonzaga, all gone, the previous two generations of top heavyweights are either retired or taking the rare money fight somewhere else.
I mean look at Rozenstruik, he finished Arlovski, Overeem, and Dos Santos by strikes in three of his last four fights, that would have been huge even five years ago, but nowadays a guy doing that barely gets any mention.
